Internal-combustion engine.



m. KUCSERA. INTERN AL v COMBUSTION ENGINE.

APPLIQATION PIL'ED SEPT. 8. 1909.

450 man r Patented Dec. 22, 1914.

7 To all whom it may commi- UNITED STATES PATENT OFFICE.

MICHAEL xocsmm, OF NEW YORK, N. Y.

INTERNAL-COMBUSTION ENGINE.

specification of Letters Patent. Pat t 191 Application n'la September a, 1909; Serial No. 516,700.

Be known that lfMi'onm KUCSERA, fa subject of the Kingof Hungary, and resident of the city of New. York,'in-' the county of New York andfState'of New York, have invented certain new and useful. Improvements in InternaLConibustion Engines, of which the following is a specification.

The present invention relates tointernal co'r'nljustion engincs, and has for its object supply-chamber of the combustible mixture,

or from the supply chamber of .one of its constituents, to the inletport ofthe cylinder of the engine, which passages are arranged in close contact with a p'assage leading from the exhaust port or ports to'a mufiler or the atmosphere, whereby all or some of the heat of the .exhaust'gases is imparted to the entering fresh charge, raising thus its temperature. v

One of the many possible embodiments of the invention is illustrated in the drawings, inwhich Figure 1 is a central vertical section of an engine embodying the invention, Fig. 2 'a section taken on line 2, 2 0i Fig. 1, Fig. 3 is a front elevation of the engine, part of the shell being, broken away in'order to more clearly show the construction, Fig. 4 is a section taken on line 4, l of Fig. 2, Fig. 5

is a vertical section of an engine embodying a modified construction of the invention, Fig. 6 illustrates a detail of another modification, and Fig. 7 is a section taken on line 7,701? Fig.6.

In the drawings, the numeral 8 indicates a water cooled cylinder, having theusual water-jacket 9.- The cylinder 8 is mounted upon a crank-case 10, substantially circular in form and provided with removable side pieces 11, which allow of a proper assembling of the movable parts of the engine. The crank-case and the sidepieces 11 form bearings in which the crankshaft 12 is jo urnaled. The crankshaft is connected by a pitman '13 to a piston 14 of the usual type and construction; its deflector being indicated. at '15," and serving. a well known purpose. The piston controls the intake 10' of the crank-case. i

.In opposite sides of the cylinder are arranged the inlet port 16 and the exhaust port 17, each of which extends almost over half of the periphery ofthe cylinder and are, therefore, provided with bridges 18 and 19', respectively, to make the structure more rigid. The exhaust port 17 communicates with a chamber 20, which, in turn is connected to a mufiler 21 of any suitable con struction, or may communicate with the .atmosphere. In'the crank-case, and more particularly on the exhaust side thereof, is arranged a substantially vertical passage 22,;

leading toward the chamber 20 and braneha ing ustbelow it into't-wo passages 23, 23,

which lead to' the two sections of the inlet lG'of the cylinder.' The upper wall of the passage'23 and thebottom of the chamber 20 are common, whereby the heat given up to the walls of the 'cham'ber 20,.is conducted fresh combustible charge and completing thus the evaporation of the fuel. o

It is, of course, understood that'the inven tion may be applied to all kinds of internal combustion engines irrespective of their mode of. operation and construction, and

1 irrespective of the number and arrangement of their cylinders.

A modification'of the invention is shown.

in Fig. 5, in which theconnnunicating pas:

sage between the crank-case and the inlet of; the engineis located outside of the 'crankinto the passage 23'," heating thereby the case i In this P icular case the inlet 24 and i the outlet 25. are'arranged upon the same side of the cylinder, and more particularly" the exhaust port above the inlet port. A pipe 26 leads from'the exhaust port and is bent downward substantially parallel with the axis of the cylinder. A communicating passage 27 leads from the outlet 28 of the crank-case to the inlet 2 lof the cylinder and is arranged in the exhaust pipe 26. The piston 28' of the engine is provided with a deflector 29, which forms with the top 30 of the piston a passage31, through which the fresh charge is admitted into the cylinder.

The operation of the heating means of the fresh charge is obvious. Instead of m ranging;thie'ggcomnhmicating passage 27 in the eihaust pipe, the same ma} be arranged outside thereof, as for instance shown in Figs. 6 mid 7, in which a pipe 32 ispro- \ided having (3W0 passages, that-is passage forthe exhaust gases and passage 3% for the freshnehargeh Oi course, instead'of cast: ing the two passages in one pipe, tivo sepa- 'rate pipes may be provided, the walls where:

of Contact with each other. a llthi'lelthecommunicating passage is herei'n described as -con-i'.ey-ing the combustible mixture Etc-the cylinder of the engine, it will be understood-that:thesame may serve to carry onl t one di -the constituents of the charge to the-inletport.

\Vhat I claim is: l "L In an internal combustionengine, the combination of a"c$li1 ider hai'ing a suction poi-t, an inlet-port"in its wall and opening with their inner sides in'to the c'ylinde ga'n exhaust port opposite the inlet port, a duct leading new the compression"chamber upon the exlraust sidc adjacent. to the" exhaust port, where it 'b'rancl1e's "-a'nd extendsjaround op posite side of 'thcylindr and communicates with the explosion chamtmr through the said inlet;tl1earrangement being such that the conte s" ofthebranchducts and Y I duct u'ill be heated --b ht exhaust" gases discharged through t?'p'o'rt:- 7

internal combustion engine, the nfofa cylinder, having=an inlet po t a 'exhhus "l" around 'tli' cylinder and forming a the, V nicating' with the compression cham- 40 eXh-aust side adjacent to hereit branches and exs aroundbppof site side of the cylinder zaif jd omm taa 1u 1 sa eraarrangeiifntbeing' such that the contents of the said ts -gillbe heatec lby the shot exhaust gases "o h'ithe exhaust port.

QIlllJllhilQlt of a c' 'l 1 nder hav1ng aninlet mm; I ng fu lth thei'r'inner side into the mcylinder U l QYhaust port extending discharged through the exhaust per rtfe'ach one extending ne'r 'side of suction port,

ates'i 'vith the explosion champartly around the cylinder, aii' siie'tifinj" port communicating with the coli qii'eisioir-"cham-v her, a duct leading from the compression chamber'u'pon .thez-exhaust side adjacent to the exhaust port, branching around opposite side of the cylinder and communicating with the explosion chamber through the said inlet, the arrangement being such' thatthe contents of-the branch ducts and partly in the main duct will be heated by the hot ex haust gases discharged t-hrough the-exhaust port. i -t J 1 t.

- L. In an internal combustion; engine, the

combination ofa cylinden having a suction opposite side of the cylinder and-con1inuiiieating with the explosion.chamberthnbugl: thesaid inlet,the exhaust portand the b r ducts having a common Wall. the contentsgof the branch ducts and partly thatinthe main,

duct will be heatedbythethot exhaust;

5. In an internal combustion engine the CJiUUlnzllZlOllof a. cylinder haying one or more inlet ports, one ormore exhaust rts,

eaeh one extending partly, around ;thecyl-"v Y inder, opposite to eachother, sect oned ,fv th bridges. opening 'u itlvrtheiriinner-side into the cylinder suction Orhcommumeatmg gases with the compression chambema'ducts 'lead ing from the compressionf chamber upon the exhaust sidesfidjacentto the exhaust ports and ljl'z'lllClillig around oppos te sldc of the c -ilinder, and connnun ca'ting- \Vltl'b the BX plosion chamber through the said, inletports, the arrangement being such that the contents of the said'duets will be heated by the hot exhaust gases discharged through the exhaust ports.

Signed at New MICHAEL KUCSER Witnesses: V

- LORDISLAL'S Frzne'rn,

JOHN FEKETE.

York, in the county oi Xeu' York and State of New Yorli,this 31st day of August, A. D; 1 909. I lfcoznbilstion engine, the i I 

